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2015 Map of Indian Spring Mountain

Name: 2015 Topographic Map of Indian Spring Mountain
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Indian Spring Mountain and the surrounding volcanic terrain of the High Cascades dominate this Siskiyou County landscape, where the Shasta National Forest meets the Modoc National Forest. The map documents a high-altitude wilderness defined by land management and utility infrastructure, featuring extensive forest service roads such as Mayfield and For Route 3. A network of utility corridors is visible via Powerline 4 and various towers crossing the flats.

Local history is preserved through labels for the Pit Wiley Ranch and the Pit Wiley GS (Site) near the southern boundary. Significant topographic features like the Whitehorse Mountains and the basaltic formations of Lava Spur indicate the area's complex geology. Water sources essential for this dry upland environment are clearly marked, including Indian Spring, Mayfield Spring, and the drainage of Tuft Cr flowing through Barnum Flat.